ciency. Here
again, the farmer need not worry over lack of highest efficiency, as a
lamp giving only 80 per cent of its rated candlepower is still
serviceable when he is not paying for the current. With care not to
use them at voltages beyond their ratings, lamps will last for years.

_A Specimen Light Allowance_

Below is a typical table of lights for a large farm house, the barns
and barn-yard. It is given merely as a guide, to be varied for each
individual case:

Watts
Kitchen, 2 lights @60 watts 120
Dining room, 1 light, tungsten 100
Living room, table lamp with 3 tungstens @40 120
Living room, 2 wall fixtures, 4 lamps @60 watts 240
Parlor, same as living room 360
Pantry, 1 hanging lamp 60
Cellar, one portable lamp 60
Woodshed, 1 hanging lamp 60
2 bedrooms, 2 lights each @ 60 240
2 bed rooms, 1 light each @60 120
Bathroom, 1 "turn-down" light, @60 60
Hall, downstairs, 2 lights @60 120
Hall, upstairs, 1 light 60
Attic, 1 light 60
Porch, 1 light 60
Barn and barn-yard:
Barn-yard entrance, 1 tungsten 100
Watering trough, 1 " 100
Front gate, 1 " 100
Horse barn, 4 lights @60 240
Cow barn, 4 lights @60 240
Pig house, 1 light 60
Hay barn, 2 lights, @60 120
-------
Total for farmstead 2,800

This provides for 44 lights, an extremely liberal allowance. How many
of these lights will be burning at any one time? Probably not one-half
of them; yet the ideal plant is that which permits all fixtures to be
in service at one time on the rare occasions when necessary. Thus, for
lighting only, 2,800 watts maximum service would require a 4 kilowatt
generator, and 10 water horsepower, on the liberal rating of two to
one. A 3 ki